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Viper1
One way would be to have two cups one that is 2/3 and one that is exactly 1 cup. fill the 2/3 cup up with what ever you want to measure.. like water and put it in the empty cup. fill the 2/3 cup again and fill the partially filled cup with water again.
2/3 1/3 = 3/3 = 1 cup. The answer is 1 and 1/2 cups will make 1 cup when using a 2/3 cup.
Similarly, how many 1/4 cups do I need to make 2 3 cups? 1/4 will go into 2/3 2.66 times. To get your answer, you need to put 1/4 and 2/3 into a compatible context, that is make them more the same. You can do this by thinking of each of them as some number of 12ths. 1/4 is the same as 3/12 and 2/3 is the same as 8/12.
Hereof, how many 2/3 cups does it take to make 3 cups?
Answer is 4 “2/3” cups in 3 given cups.
How many 1 3 cups make half a cup?
If all you have is a 1/3 cup then you can get 1/2 cup by adding 1/3 a half of 1/3. So you measure 1/3 and put it into another container, then fill the 1/3 cup half-way and then add that to the container.